Brix improving agent for fruits or vegetables, production method thereof, and method for improving sugar content

摘要

PROBLEM TO BE SOLVED: To provide a sugar content improver that improves the sugar content of fruits or vegetables and a method of producing the same, and a sugar content improvement method.SOLUTION: A fruit or vegetable sugar content improver comprises, as an active ingredient, a crystallization mother liquid after the crystallization of glycyrrhizinic acid obtained from a neutral or alkaline water extraction liquid of licorice.